Study Of Brake Squeal Problem By Pulsed Holographic Interferometry

J. D. Hovanesian; Y. Y. Hung; M. A. Erickson

doi:10.1117/12.947675

14 December 1988 Study Of Brake Squeal Problem By Pulsed Holographic Interferometry

J. D. Hovanesian, Y. Y. Hung, M. A. Erickson

Proceedings Volume 0955, Industrial Laser Interferometry II; (1988) https://doi.org/10.1117/12.947675
Event: SPIE International Symposium on Optical Engineering and Industrial Sensing for Advance Manufacturing Technologies, 1988, Dearborn, MI, United States

Abstract

Holographic pulsed interferometry was applied in this investigation to studies of an automotive brake squeal problem. Pulsed holograms made on a brake disc assembly which squealed in a simulated service test in a laboratory loading fixture gave a clear display of the vibrating characteristics of the brake assembly. A subsequent investigation on free vibrating brake rotors excited by piezo-electric actuators simulated the service vibration patterns and provided means to evaluate natural disc vibrational modes. This capability in turn would lead to the evaluation of the vibration amplitude damping characteristics of various brake disc designs and materials that could be used in reducing brake squeal. Due to the limited scope of the investigation the development of a low damped brake disc was not carried out.

Citation Download Citation

J. D. Hovanesian, Y. Y. Hung, and M. A. Erickson "Study Of Brake Squeal Problem By Pulsed Holographic Interferometry", Proc. SPIE 0955, Industrial Laser Interferometry II, (14 December 1988); https://doi.org/10.1117/12.947675

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